# Top 27 companies with in-house R&D in Lithuania Tamtam tracks 27 companies with in-house R&D headquartered in Lithuania. This list ranks all of them by number of employees on LinkedIn, led by Kaunas University of Technology, FL Technics and Lithuanian University of Health Sciences. Their median headcount is 307. Half of them were founded in 2000 or later. The most common headquarters are Vilnius (15) and Kaunas (8). This selection of Lithuanian companies with in-house R&D includes a mix of large established institutions and mid-sized firms. Higher education and healthcare are prominent, with entities like Kaunas University of Technology, a technological university, and VUL Santaros klinikos, one of Lithuania's largest hospitals. The telecommunications sector is also well-represented by companies such as Teltonika, which designs and manufactures IoT devices, and Teltonika Telematics, specializing in vehicle telematics solutions. Other notable companies include Light Conversion, a manufacturer of femtosecond lasers, and Kongsberg NanoAvionics, a small satellite bus manufacturer. A clear pattern in this data is the concentration of R&D activities in Lithuania's two largest cities. Many of these companies are headquartered in Vilnius, including FL Technics, a global provider of aircraft maintenance, and VILNIUS TECH, an innovative university. Kaunas also features significantly, hosting the Lithuanian University of Health Sciences and Teltonika Networks, which produces network connectivity equipment. πŸ‡±πŸ‡Ή Lithuania Β· 27 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Kaunas University of Technology](https://www.tamtam.ai/c/kaunas-university-of-technology) (ktu.edu)
Innovation-focused technological university in Lithuania offering interdisciplinary study programs, research collaborations with industry, and a strong international presence | Higher Education | πŸ‡±πŸ‡Ή Kaunas | 1,864 | 1922 | | 2 | [FL Technics](https://www.tamtam.ai/c/fl-technics) (fltechnics.com)
Global provider of tailored aircraft maintenance, repair, and overhaul services with extensive network and certifications across multiple continents. | Airlines and Aviation | πŸ‡±πŸ‡Ή Vilnius | 1,307 | | | 3 | [Lithuanian University of Health Sciences](https://www.tamtam.ai/c/lithuanian-university-of-health-sciences) (lsmu.lt)
Leading university in Lithuania specializing in health, life, agriculture, and veterinary sciences Training specialists and conducting significant scientific research internationally | Higher Education | πŸ‡±πŸ‡Ή Kaunas | 1,189 | | | 4 | [VILNIUS TECH - Vilnius Gediminas Technical University](https://www.tamtam.ai/c/vilnius-tech-vilnius-gediminas-technical-university) (vilniustech.lt)
Innovative university educating highly qualified specialists, leading in technological sciences, offering modern, labor market-oriented studies and extensive research facilities. | Higher Education | πŸ‡±πŸ‡Ή Vilnius | 1,136 | 1956 | | 5 | [VUL Santaros klinikos](https://www.tamtam.ai/c/vul-santaros-klinikos) (santa.lt)
VUL Santaros klinikos is one of the largest hospitals in Lithuania, providing high-quality specialized healthcare services and conducting ongoing educational and scientific research | Hospitals and Health Care | πŸ‡±πŸ‡Ή Vilnius | 1,097 | 1981 | | 6 | [The Hospital of Lithuanian University of Health Sciences Kauno klinikos](https://www.tamtam.ai/c/the-hospital-of-lithuanian-university-of-health-sciences-kauno-klinikos) (kaunoklinikos.lt)
The Hospital of Lithuanian University of Health Sciences Kauno klinikos is a leading healthcare institution providing high-quality medical services in Lithuania | Hospitals and Health Care | πŸ‡±πŸ‡Ή Kaunas | 902 | 1940 | | 7 | [Teltonika](https://www.tamtam.ai/c/teltonika) (teltonika-iot-group.com)
A rapidly growing company specializing in designing, manufacturing, and selling high-quality IoT devices, dedicated to providing innovative solutions for clients and supporting employee growth | Telecommunications | πŸ‡±πŸ‡Ή Vilnius | 860 | 1998 | | 8 | [Teltonika Telematics](https://www.tamtam.ai/c/teltonika-telematics) (teltonika-gps.com)
Specializing in telematics solutions for vehicles of all sizes, we provide innovative ways to monitor and optimize resources, reduce costs, and enhance safety for various industries | Telecommunications | πŸ‡±πŸ‡Ή Vilnius | 765 | 1998 | | 9 | [Mykolas Romeris University](https://www.tamtam.ai/c/mykolas-romeris-university) (mruni.eu)
A university focused on social studies offering international joint study programs, double or triple diplomas, and promoting social innovations and research | Higher Education | πŸ‡±πŸ‡Ή Vilnius | 749 | 1990 | | 10 | [Teltonika Networks](https://www.tamtam.ai/c/teltonika-networks) (teltonika-networks.com)
Manufactures professional network connectivity equipment for international markets, specializing in IoT, M2M communication, Industry 40, Smart City, and Green Energy solutions | Computer Networking Products | πŸ‡±πŸ‡Ή Kaunas | 744 | 1998 | | 11 | [Light Conversion](https://www.tamtam.ai/c/light-conversion) (lightcon.com)
Specializing in femtosecond lasers and optical systems, the company designs and manufactures products for industrial, scientific, and medical applications worldwide, emphasizing research and development | Appliances, Electrical, and Electronics Manufacturing | πŸ‡±πŸ‡Ή Vilnius | 464 | 1994 | | 12 | [Kauno Kolegija](https://www.tamtam.ai/c/kauno-kolegija) (kaunokolegija.lt)
A state-owned institution in Lithuania offering higher education in technologies, social sciences, biomedicine, humanities, and arts with over 40 study programs | Higher Education | πŸ‡±πŸ‡Ή Kaunas | 381 | 2000 | | 13 | [Nando](https://www.tamtam.ai/c/nando) (nandobio.com)
Biotechnology company specializing in microbiological products and chemical additives for agriculture and industry, utilizing innovation and collaboration for product development | Biotechnology Research | πŸ‡±πŸ‡Ή Kaunas | 328 | 2006 | | 14 | [CyberCare](https://www.tamtam.ai/c/cybercare) (cybercare.cc)
Innovative customer success company redefining tech support with human touch and innovative solutions globally, powered by Tesonet | IT Services and IT Consulting | πŸ‡±πŸ‡Ή Vilnius | 307 | | | 15 | [Kongsberg NanoAvionics](https://www.tamtam.ai/c/kongsberg-nanoavionics) (nanoavionics.com)
Manufacturer of high-performance small satellite buses providing mission integration, launch brokerage, and logistics services for affordable space-based applications and satellite service markets. | Aviation and Aerospace Component Manufacturing | πŸ‡±πŸ‡Ή Vilnius | 229 | 2014 | | 16 | [MANTINGA](https://www.tamtam.ai/c/mantinga) (mantinga.lt)
Production and export of diverse frozen bakery and convenience foods using advanced technologies, certified hygiene, and wide product assortment. | Food and Beverage Manufacturing | πŸ‡±πŸ‡Ή MarijampolΔ— | 187 | 1998 | | 17 | [BetGames](https://www.tamtam.ai/c/betgames) (betgames.tv)
A global provider of live dealer betting products focused on entertainment, safety, and low-risk betting, serving clients worldwide with licensed games | Software Development | πŸ‡±πŸ‡Ή Vilnius | 173 | 2012 | | 18 | [RSI Europe](https://www.tamtam.ai/c/rsi-europe) (rsieu.com)
Develops and manufactures innovative remotely controlled systems including initiation equipment and FPV drones for combat engineers and explosives experts in active zones. | Defense and Space Manufacturing | πŸ‡±πŸ‡Ή Vilnius | 96 | 2022 | | 19 | [Brolis Semiconductors](https://www.tamtam.ai/c/brolis-semiconductors) (brolis-defence.com)
High-tech company specializing in developing and manufacturing semiconductor optoelectronic devices and electro-optical systems for defense and security applications Headquarters in Vilnius, Lithuania | Defense and Space Manufacturing | πŸ‡±πŸ‡Ή Vilnius | 70 | 2011 | | 20 | [Agmis](https://www.tamtam.ai/c/agmis) (agmis.com)
Providing tailored Salesforce solutions and advanced Computer Vision applications to enable digital transformation for businesses worldwide, with a focus on employee satisfaction and team cohesion | Software Development | πŸ‡±πŸ‡Ή Kaunas | 60 | 2007 | | 21 | [Astrolight](https://www.tamtam.ai/c/astrolight) (astrolightspace.com)
A company developing secure telecommunication systems for aerospace, defense, and governmental applications using expertise in radio, photonics, and satellite technology | Satellite Telecommunications | πŸ‡±πŸ‡Ή Vilnius | 46 | 2019 | | 22 | [Grainmore](https://www.tamtam.ai/c/grainmore) (grainmore.lt)
Specializing in grain processing and probiotic manufacturing, our company uses advanced technology to offer natural, safe, and premium quality products to customers | Food and Beverage Manufacturing | πŸ‡±πŸ‡Ή Senieji Trakai | 35 | 2013 | | 23 | [DIONE ICE CREAM](https://www.tamtam.ai/c/dione-ice-cream) (dioneicecream.com)
A renowned ice cream producer since 1950, known for creating unique flavors with finest natural ingredients, focused on taste and quality | Food and Beverage Services | πŸ‡±πŸ‡Ή KlaipΔ—da | 32 | 1950 | | 24 | [Integrated Optics](https://www.tamtam.ai/c/integrated-optics) (integratedoptics.com)
Manufacturer of ultra compact lasers and integrated optical devices, specializing in high-quality, self-contained laser sources with superior size/power ratio and affordability | Industrial Machinery Manufacturing | πŸ‡±πŸ‡Ή Vilnius | 30 | 2012 | | 25 | [Blackswan Space](https://www.tamtam.ai/c/blackswan-space) (blackswanspace.com)
Building advanced software products for time-critical solutions in in-space infrastructure for complex missions | Defense and Space Manufacturing | πŸ‡±πŸ‡Ή Vilnius | 18 | 2019 | | 26 | [THERMOWAVE](https://www.tamtam.ai/c/thermowave) (thermowave.com)
An innovative outdoor performance apparel company with 90 years of experience, focused on supporting modern outdoor enthusiasts with high-quality, EU-made clothing | Textile Manufacturing | πŸ‡±πŸ‡Ή Kaunas | 14 | | | 27 | [Cellular Expert](https://www.tamtam.ai/c/cellular-expert) (cellular-expert.com)
Specializing in telecom software development using ArcGIS, providing services in network planning, optimization, propagation calculations, and consultancy for various industries globally | Software Development | πŸ‡±πŸ‡Ή Vilnius | 13 | | ## How this list is built Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026. ## More company lists in Lithuania - [The largest companies in Lithuania](https://www.tamtam.ai/l/largest-companies-lithuania) (398) - [Multinational companies in Lithuania](https://www.tamtam.ai/l/multinational-companies-lithuania) (128) - [Financial Services companies in Lithuania](https://www.tamtam.ai/l/financial-services-companies-lithuania) (62) - [Financial services firms in Lithuania](https://www.tamtam.ai/l/financial-services-firms-lithuania) (50) - [Critical infrastructure operators in Lithuania](https://www.tamtam.ai/l/critical-infrastructure-operators-lithuania) (43) - [IT Services and IT Consulting companies in Lithuania](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-lithuania) (38) - [SaaS companies in Lithuania](https://www.tamtam.ai/l/saas-companies-lithuania) (34) - [Software Development companies in Lithuania](https://www.tamtam.ai/l/software-development-companies-lithuania) (30) - [IT services companies in Lithuania](https://www.tamtam.ai/l/it-services-companies-lithuania) (29) - [Fintech companies in Lithuania](https://www.tamtam.ai/l/fintech-companies-lithuania) (26) - [Companies with a mobile app in Lithuania](https://www.tamtam.ai/l/companies-with-mobile-app-lithuania) (26) - [Manufacturers in Lithuania](https://www.tamtam.ai/l/manufacturers-lithuania) (26) - [Retail chains in Lithuania](https://www.tamtam.ai/l/retail-chains-lithuania) (25) --- Source: https://www.tamtam.ai/l/r-and-d-companies-lithuania